(19)
(11) EP 0 103 986 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.05.1985 Bulletin 1985/20

(43) Date of publication A2:
28.03.1984 Bulletin 1984/13

(21) Application number: 83304769

(22) Date of filing: 17.08.1983
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 20.08.1982 IT 2291582

(71) Applicant: Montedison S.p.A.
 ()

(72) Inventors:
  • Marraccini, Antonio
     ()
  • Carlini, Filippo Maria
     ()
  • Pasquale, Antonio
     ()
  • Maranzana, Giorgio
     ()

   


(54) Organic dyes containing silane groups, and process for preparing the same


(57) There are described organic dyes containing silane groups, composite pigments obtainable therefrom by grafting on an inorganic substrate, and the respective processes for preparing the same.
The dyes have the general formula:

wherein:

R, and R2, which may be the same or different, are H, -NH2, -NHR wherein R is an alkyl group having from 1 to 4 carbon atoms or a phenyl group, -NHCOCH3, -NHCOC6H5, -N02, a halogen, -OH,-O-C6H5, or -S-C6H5; n is 3, 4 or 5; W is an alkyl group having from 1 to 4 carbon atoms or a phenyl group; q is 0 or 1; Y is an alkoxy group having from 1 to 4 carbon atoms; x is 3 and m is 0, 1, or 3 when q is 0; and x is 2 and m is 0, 1 or 2 when q is 1.


The composite pigments obtained from the dyes may be employed in preparing painting products, air enamels and stoving enamels, in the pigmentation of plastics materials, and in inks and pastes for the printing of fabrics. (1)





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